<?php

/*
 * Copyright 2008 the original author or authors.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#namespace tehframework\annotations\parsers\processors;

#use tehframework\annotations\parsers\state\ParserState;
#use tehframework\annotations\parsers\state\StateParser;
#use tehframework\annotations\parsers\state\StateProcessor;
#use tehframework\annotations\parsers\state\SelectionAware;

class ShortDescriptionProcessor extends StateProcessor implements SelectionAware
{
	/**
	 * @var string
	 */
	private $value;
	
	public function selected()
	{
		$this->value  = '';
	}
	
	/**
	 * @param char $token
	 * @param StateParser $parser
	 */
	public function process($token, StateParser $parser)
	{
		if ($parser->nextToken === null)
		{
			$parser
				->setShortDescription($this->value . $token)
				->changeState(ParserState::DOCBLOCK);
			
			return;
		}
		
		if (($token === "\n") && ($parser->nextToken === "\n"))
		{
			$parser
				->setShortDescription($this->value)
				->changeState(ParserState::DOCBLOCK);
			
			return;
		}
		
		if (($token === '\\') && ($parser->nextToken === '@'))
		{
			return;
		}
		
		if (($token === '@') &&
			(($parser->prevToken !== '\\') && ($parser->prevToken !== '{')))
		{
			$parser->setShortDescription($this->value)->changeState(ParserState::TAG);
			
			return;
		}
		
		$this->value .= $token === "\n" ? ' ' : $token;
	}
}